Half to harlan p



(No Model.)

L. L. SAGENDORPH.

MACHINE FOR LOOKING SHEET METAL JOINTS.

No. 398,655. Patened Feb. 26, 1889.

UNITED STATES PATENT OFFICE.

LONGLHY LEWIS HAGENDORPI], OF CINCINNATI, Olllt), ASSIGNOR OF ONE- Il'ALF TO HARLAN l". LLOYD, F SAME PLACE.

MACHINE FOR LOCKING SHEET-METAL JOINTS.

SPECIFICATION forming part of Letters Patent No. 398,655, dated February 26, 1889.

Application filed September 20, 1888. Serial No. 285,883. (No model.)

.To uZZ whom, it may concern: i in position over the stationary bar B and Be it known that I, LONGLEY LEWIS SAG- adapted to move vertically between the end ENDORPH, a citizen of the United States, and l frames, This movable bar A is upheld in a resident of Cincinnati, Hamilton county, position between said end frames by suitable 5 State of Ohio, have invented certain new and spiral springs, u, (shown by dotted lines in 5 5 useful Improvements in Machines for Lock- Fig. 1,) which rest in suitable countersunk ing Sheet-Metal Roofing-Joints, of which the 1 portions in the said clamp-bars, as shown. following is a specification. These springs may be of any other suitable In the drawings accompanying this speciconfiguration, or, if desired, rubber may be IO fication and forming a part thereof, Figure 1 used, the object being to afford a means for is a side elevation of my improved machine. keeping the bar A elevated and away from Fig. is a central vertical section taken i the stationary bar B, except when operated through the two clamping-bars, showing two upon by the eccentric lever, as will more fully sheets of metal in position ready to be clamped hereinafter appear.

15 and locked. Fig. 3 shows a section of two i The lower stationary cla1np-bar, B, has two sheets of metal after having been clamped rib projections, b, 011 its upper face, forming and locked by my improved machine. a flat groove, 7), between them for the entire Heretofore sheets of metal roofing have length of the bar, or at least between the end been joined by providing each sheet of metal frames, which groove is about the width of 20 with overlapping end flanges, adapted to enthe flange on the lower sheet of metal. A gage each other when placed in positiomaml T corresponding grooye, a is also formed in then subjecting the ends of the sheets and the bottom face of the movable bar A for the flanges to a pressure, which formed a lockflange ot' the upper sheet to rest in when joint. The objection to this method of joinclamped together.

25 ing sheets of metal is that in handling the Near the center of the flat groove 7/ is sheets or in rolling them for shipment the Formed a longitudinal semicircular groove, 5 sheets are liable to become separated, as the (shown in Fig. 2 and by dotted lines in Fig. compressed flanges are on the same plane for 1,) for the greater length of said bar B, but the entire width of the sheet, and much valnot the entire length thereof, as shown in 0 uable time is lost in replacing the sheets in Fig. i. To the bottom face of the movable position relative to each other. bar A, and near the center of the groove (1,

The object of my invention is to provide a is cast or suitably secured a longitudinal rib. machine which will clamp the end flanges of (L2, corresponding in configuration wit-h the the sheets together for their entire width, groove if, and adapt edto fitthercin when said 35 and at the same time form a depressitm, o", 1 bar is lowered. in the ends of said sheets and flanges for the 5 The vertically-movol)le clamp-bar A is in greater part of their width, (not the entire 1 the presentillustration operated by means widtln) in order to securely lockihe same and of the eccentric lever E and auxiliary eccenprevent any displacement of the sheets while tric E, said eccentrics being connected by an 4.0 being handled or rolled. The blank portion adj ustablc rod, E' c of the sheets in which the depression a is The operation of my device is as follows:

not formed is intended to be utilized for j A suitable table (not shown) is provided at forming a standing seam for adjoining side each sideot' the machine at about a level with sheets. 1 the top of the stationary bar 3, on one side 5 My invention is ('mistrucit-d as follows: of which the metal to be joined is placed. 5 The two clamp-bars A and l are mounted i The sheets are lirst provided with the overbetween suitable end frames, 0, made fast to f lapping flanges and hooked together, and are, the lower stationary bar, B, which latter is then drawn in between the clamp-bars A and rigidly connected to the plat-form I) in any 1 B until the top sheet strikes against the 5o suitable manner. The clamp-bar A is placed i guide-pins F, as shown in Fig. 2, which latter loo rest loosely in holes drilled in the movable bar A. The top bar is now made to descend through the medium of the eccentrics E and E,Which causes the overlapping flanges of the sheets to be tightly pressed in the grooves I) and a and at the same time forms the longitudinal depression a" in said sheets and flanges, corresponding to the groove b and rib a of the clamp-bars. After forming this depression the eccentric lever is raised, when the bar A is elevated to plaeeagain by means of the springs a.

Instead of employing but one continuous rib and groove, a series of ribs and grooves may be formed in said clamp-bars; but it preferred to use but one rib and groove, as shown.

Any suitable operative mechanism may be center of said groove a, and suitable mech- 3o anism for operating said movable bar.

LOKGLEY LEWIS SAGENDORPII.

' Vitnesses:

HENRY Woosr, E. S. HAVENS. 

